Rebar bolster



FIG. 1 is a front perspective view of a rebar bolster showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left elevation view thereof;

FIG. 5 is a right elevation view thereof;

FIG. 6 is a top elevation view thereof; and,

FIG. 7 is a bottom elevation view thereof.

The broken lines showing a rebar bolster are included for the purpose of illustrating environment and form no part of the claimed design. 

CLAIM The ornamental design for a rebar bolster, as shown and described. 